Book Image

Redis 4.x Cookbook

Book Image

Redis 4.x Cookbook

Overview of this book

Redis is considered the world's most popular key-value store database. Its versatility and the wide variety of use cases it enables have made it a popular choice of database for many enterprises. Based on the latest version of Redis, this book provides both step-by-step recipes and relevant the background information required to utilize its features to the fullest. It covers everything from a basic understanding of Redis data types to advanced aspects of Redis high availability, clustering, administration, and troubleshooting. This book will be your great companion to master all aspects of Redis. The book starts off by installing and configuring Redis for you to get started with ease. Moving on, all the data types and features of Redis are introduced in detail. Next, you will learn how to develop applications with Redis in Java, Python, and the Spring Boot web framework. You will also learn replication tasks, which will help you to troubleshoot replication issues. Furthermore, you will learn the steps that need to be undertaken to ensure high availability on your cluster and during production deployment. Toward the end of the book, you will learn the topmost tasks that will help you to troubleshoot your ecosystem efficiently, along with extending Redis by using different modules.
Table of Contents (21 chapters)
Title Page
Packt Upsell
Windows Environment Setup

Data migration

Date migration is required when you would like to move or copy the data stored in one Redis instance to another for some reason. In this recipe, we will show you several methods that can be used to perform data migration of Redis.

Getting ready…

You need to finish the installation of Redis Server as we described in the Downloading and installing Redis recipe in Chapter 1, Getting Started with Redis.

You also need to finish the Setting up Redis Cluster recipe in Chapter 7, Setting Up High Availability and Cluster, to learn the basic knowledge of Redis Cluster.

How to do it...

The first way to perform a single Redis instance to another single Redis instance migration works as follows:

  1. First, let's start two Redis instances:
$ bin/redis-server conf/redis.conf
$ bin/redis-server conf/redis2.conf
$ ps -ef |grep redis-server
redis 361 32707 0 14:14 pts/5 00:00:00 grep redis-server
redis 21413 1 0 Dec10 ? 00:03:10 bin/redis-server
redis 32762 1 0 14:13 ? 00:00:00 bin/redis...